Go Behind the Scenes With Pharrell, Elmo on 'Sesame Street'

On a recent episode of Sesame Street, Pharrell Williams sang a song dedicated to the power of reading with Cookie Monster and Elmo. While filming the special episode, the co-stars spoke with Rolling Stone about the song and their budding friendship while offering an exclusive peek at the making of the scene.

“This is a dream come true,” Williams says while recalling his experience of watching Sesame Street as a kid.

“We’re very happy he’s here. We’re very grateful,” Elmo adds.

Their collaboration, “B Is for Book,” features music written by Questlove, who also produced the track. “Elmo’s trying to work on his Questlove hair,” the Muppet admits with a giggle after Williams brings up their behind-the-scenes collaborator.

For their scene, Elmo, Williams and Cookie Monster travel the world together while reading a book about Egypt. The song explores how books can take their readers on a journey. As for the journey of their day spent together, Elmo reveals how thrilled he is that Williams is singing with them and doesn’t yet have a favorite memory. “Elmo hopes we make lots of memories today, right?” he says.